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Finding the Third Proportional to 4,270 and 9,222

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Solution

The third proportional to 4,270 and 9,222 is: 19,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270 : 9,222 = 9,222 : x
  2. Step 2: Convert to fraction form
    4,270/9,222 = 9,222/x
  3. Step 3: Cross multiply
    4,270x = 9,222 × 9,222
  4. Step 4: Simplify right side
    4,270x = 85,045,284
  5. Step 5: Solve for x
    x = 85,045,284/4,270
  6. Step 6: Final answer
    x = 19,916.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.